Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-04-2024 15:57

General

  • Target

    ffa55a7cbe4dfd829703eec4378861ed_JaffaCakes118.exe

  • Size

    128KB

  • MD5

    ffa55a7cbe4dfd829703eec4378861ed

  • SHA1

    83606bbbdad6f3f548c7bb5f76d8e818f89a31c7

  • SHA256

    872c8b8cb59f8041fdfab8f721be311739b84a026989b194ca015f74c1c702e8

  • SHA512

    4cfbd69969191da9d4660617836e3346de946fd6c89882106ece9fe1f6fcd83d706ec0df6d6cd44912c42bc2ea9b565f8fcb90cd51e225662e9d044917b85d37

  • SSDEEP

    3072:ahfdRzH0M8hu63W6X8kkBNqZLH8CAPu63W6X8kk:ahbHv8kGekkBwZjAGGekk

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in Windows directory 5 IoCs
  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ffa55a7cbe4dfd829703eec4378861ed_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\ffa55a7cbe4dfd829703eec4378861ed_JaffaCakes118.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:4628
    • C:\Windows\outlook.exe
      C:\Windows\outlook.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Windows directory
      PID:4928
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4928 -s 16108
        3⤵
        • Program crash
        PID:1368
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4928 -ip 4928
    1⤵
      PID:3524

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Windows\outlook.cfg

      Filesize

      1KB

      MD5

      2d54ec343a05498834824c0ad8db1254

      SHA1

      2c75883a7d5d2324055a56123201a986c5cab571

      SHA256

      660609ebbc5666f4c0b46f45423e6336b3fd1f6719b02f3f6ed46ce338358c71

      SHA512

      1a875eedada0d5f620263d1c7fa768f3c2e1d46e5159cf9f9242d26c90d2a973e21aba7a83b63d11c02e75d7ab79d16d5d97cc236da2b626ec35545f9e4bb8e4

    • C:\Windows\outlook.cfg

      Filesize

      1KB

      MD5

      e2671f253e1692f97a8bdbc8382b77fe

      SHA1

      741c1ab3428bfa01db0385f46b7a19c795be7736

      SHA256

      68b6205361e23914ea6baac565c3ed449c3ce2fe44e3aaabec41e2468817d59e

      SHA512

      aa9e73396c674c19bac25977e996ce1f5edcb0305e064181983676cab6ef9e938cef12913bfa1577cca8a5106b483026e2e308c0c9c3f33e8430a1d1d8589144

    • C:\Windows\outlook.cfg

      Filesize

      1KB

      MD5

      0ac3f95be3bab79fca74c60a628ad0e5

      SHA1

      9809eb53dac84cedb4f6f8923d918a733cfa8bf9

      SHA256

      b7b67ac67725796507dd07ffe75b2165350c28d2266ca214d6edd2918201f03d

      SHA512

      458a58cef8cc6ae8a655c4bb66654c2f183ef3b23e214ef332fdfb56599410d8cb418e541061a086de6d75a8c48635a862e7194cd04f40bef0b2d7d43dec8347

    • C:\Windows\outlook.exe

      Filesize

      49KB

      MD5

      0e9379e357aba95f8b9883af9b67675e

      SHA1

      280a174a414e5b8588f42b6328af2c8c8ff4394f

      SHA256

      96b9c4ead67d03eb2c69103a983274e013e3466e80d8f95bd7cf3aea8be05b28

      SHA512

      6cc383806882729cd889b025802ac0d5e1c55a74b3e7d7c98932644e8802fe52b5b14a886eff70ab7deaa70fb60bb9898e55b5cd83b5b99e2a2d107dce367784

    • memory/4628-0-0x0000000000400000-0x000000000040C000-memory.dmp

      Filesize

      48KB

    • memory/4628-17-0x0000000000400000-0x000000000040C000-memory.dmp

      Filesize

      48KB

    • memory/4928-101-0x0000000000400000-0x000000000047E000-memory.dmp

      Filesize

      504KB